Damn MUD

So, I live at the bottom of a steep hill. When it rains my back yard floods. The amount of mud at my back door is driving me insane!!!! The rest of my backyard is fine, it all slopes toward my house. Jacob told me not to buy granite rocks at lowes because we could got to the granite mine and buy it by the truck load! Well, I don't have a truck! So, I'm going to lowe's, he's not here so, what's he gonna do?? I'm tired of dogs tracking nasty mud through my house!!!